It appeared that in his youth he had been a prospector in Alaska and had found a very rich vein of gold. Ill health had overtaken him and he had been forced to return to the States. Years passed, and fortune and wealth had come to him, but the lure of searching for gold was still in his veins, and in the end he had come again to Alaska, thinking to find his mine. The years had somewhat dimmed his memory, and he had searched in vein for the lost mine. Moving from day to day, he had been just as surprised to note that Marian’s camp moved with him as was Marian to discover that his camp moved with hers. In time he had become suspicious, fearing that they were dogging his footsteps. He knew that he had been well known throughout the North in the past, and he feared that others knew of his lost mine.

“And that,” concluded Mr. Montgomery, “is the reason I never called at your camp.”

“And that radio set,” said Marian, “with its flash of purple flame, is the reason that I never called at your camp. There was something so mysterious about it all.”

The old prospector smiled. “I suppose,” he said, “that my having a sending and receiving radio set is a bit strange and perhaps a little mysterious. Certainly the set is a bit strange, for to my knowledge there is not another set like it in the country. It is very compact and yet most powerful. You see, my interests in the outside are very extensive, and it is necessary for me to keep in touch with them. By the use of this set, I can keep in touch with my agent in Nome, and he, in turn, can keep in touch with the States by use of the cable.

“It was the spark of my set, while sending, that made the purple colored flash which kept you so mystified. You know, most mysterious things become quite simple when you find out all about them.

“This radio has made it possible for me to come back and look for my lost mine. It’s the lure of the thing that draws me, not the desire for the gold.”

And then it was that Marian, remembering the treasures that she had found in the cave on the enchanted mountain, and feeling that she had something in common with this old prospector, told him her story.

As she told of the carved ivory, the old man’s eyes glowed with delight, and in the end he insisted that he go into Fort Jarvis with them that he might at least see the piece they had brought along and hear Terogloona’s story.

At the post old Terogloona, in a halting way, read the pictured inscription on the four sides. Other bits of information furnished by Terogloona convinced the old prospector that Terogloona’s great-uncle had been his guide in the days when he was first prospecting and had found the mine. Mr. Montgomery wanted to set out at once with Terogloona and Attatak for the cave on the mountain.

“Why,” he exclaimed, “that’s very near my lost mine, for I remember that my old guide, Terogloona’s great-uncle, spoke of the cave as a place where we might winter in safety, should winter come down upon us before we expected it.”